my 96 e320 has 244k miles and it was working great until today that after a regular driving day , got home and when i try to turn in on it just won't star, engine rotates but there is no spark? need help please thanks

from good MB shops, California.

There are a few possibilities, cheapest and easiest may be to swap out the Crank Position Sensor, that meets your explanation of symptoms.

Are you sure it is no spark?

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

hi well i check that by taking out the spark plugs cables and i found out that one of the coils is not making any spar would that be my problem?

If it's only one of them, then that suggests a bad coil. If none spark, I'd think crank position sensor, too.

thank you gregs210 i will change both hopefully that would fix my problem.

i change the crank sensor and it started right away, drove the rest of the afternoon and it did fine,but the next morning it didn't start again same thing ,engine rotates and that is all it does...

Did you go through the adaptation procedure after replacing the crank sensor?

Here you go:

http://www.europeantransmissions.com/Bulletin/DTC.merc/MB%20Flywheel%20Adaptation%20ME-SFI.pdf

Christine

no i did not i just put it in and drove away...

I don't know that it's your problem, (others on here certainly would) but they call for this procedure for a reason.

Christine

thank you Christine for your help.
another suggestion anyone of what might be the problem?

Well I can just tell you a couple of things that might help. If it is a coil bad then it should still start, it would just run rough. If you want to confirm no spark, then spray some staring spray in the intake. If it still doesn't run then you have no spark. If it runs for a moment then it is a fuel problem.

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

the thing is that when i change the sensor the light went off and it was very smood drive

Check the OVP. That's something that was suggested to me previously when I had a similar problem.

Christine